JPH0812691B2 - 圧縮されたイメージを圧縮解除されたグレイ・レベルの縮小イメージに変換する方法 - Google Patents

圧縮されたイメージを圧縮解除されたグレイ・レベルの縮小イメージに変換する方法

Info

Publication number
JPH0812691B2
JPH0812691B2 JP4301943A JP30194392A JPH0812691B2 JP H0812691 B2 JPH0812691 B2 JP H0812691B2 JP 4301943 A JP4301943 A JP 4301943A JP 30194392 A JP30194392 A JP 30194392A JP H0812691 B2 JPH0812691 B2 JP H0812691B2
Authority
JP
Japan
Prior art keywords
run
run length
pixel
image
line
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP4301943A
Other languages
English (en)
Japanese (ja)
Other versions
JPH05258067A (ja
Inventor
エリック・ラバディ
クリス・アール・メドウクロフト
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Business Machines Corp filed Critical International Business Machines Corp
Publication of JPH05258067A publication Critical patent/JPH05258067A/ja
Publication of JPH0812691B2 publication Critical patent/JPH0812691B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/005—Statistical coding, e.g. Huffman, run length coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/40068—Modification of image resolution, i.e. determining the values of picture elements at new relative positions

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Image Generation (AREA)
  • Editing Of Facsimile Originals (AREA)
JP4301943A 1991-12-23 1992-11-12 圧縮されたイメージを圧縮解除されたグレイ・レベルの縮小イメージに変換する方法 Expired - Lifetime JPH0812691B2 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA 2058363 CA2058363C (fr) 1991-12-23 1991-12-23 Methode de decodage de signaux d'imagerie comprimes
CA2058363 1991-12-23

Publications (2)

Publication Number Publication Date
JPH05258067A JPH05258067A (ja) 1993-10-08
JPH0812691B2 true JPH0812691B2 (ja) 1996-02-07

Family

ID=4148983

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4301943A Expired - Lifetime JPH0812691B2 (ja) 1991-12-23 1992-11-12 圧縮されたイメージを圧縮解除されたグレイ・レベルの縮小イメージに変換する方法

Country Status (3)

Country Link
EP (1) EP0552544A1 (fr)
JP (1) JPH0812691B2 (fr)
CA (1) CA2058363C (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005092757A (ja) 2003-09-19 2005-04-07 Ricoh Co Ltd 画像処理装置
JP2012030450A (ja) * 2010-07-29 2012-02-16 Funai Electric Co Ltd 画像形成装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57185078A (en) * 1981-05-09 1982-11-15 Tokyo Shibaura Electric Co Picture display unit
US4596039A (en) * 1983-12-30 1986-06-17 International Business Machines Corporation Method for converting an image from a run end or run length representation to a bit map
JPS60163080A (ja) * 1984-02-03 1985-08-24 富士通株式会社 画像縮小表示処理方式
US4628534A (en) * 1984-07-06 1986-12-09 Honeywell Information Systems Inc. Method for changing the resolution of compressed image data
EP0179203B1 (fr) * 1984-10-24 1992-04-29 International Business Machines Corporation Méthode pour agrandir une image enregistrée sous forme de représentation linéaire
US4791680A (en) * 1986-03-25 1988-12-13 Matsushita Electric Industrial Co. Image data converter
JPS62226285A (ja) * 1986-03-27 1987-10-05 Nec Corp 画像拡大縮小装置
US5029107A (en) * 1989-03-31 1991-07-02 International Business Corporation Apparatus and accompanying method for converting a bit mapped monochromatic image to a grey scale image using table look up operations

Also Published As

Publication number Publication date
CA2058363C (fr) 1997-02-25
EP0552544A1 (fr) 1993-07-28
JPH05258067A (ja) 1993-10-08
CA2058363A1 (fr) 1993-06-24

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